单孔波速法和超声波法在复杂岩性地段对注浆质量的检测
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摘要
为了给乌鲁木齐绕城高速(东线)项目施工提供可靠的地质勘察资料,保障项目顺利进行。通过对乌鲁木齐绕城高速(东线)急倾斜煤层采空区与注浆工程有关的主要岩层(包括卵石层、强风化基岩、强风化煤层以及中风化基岩层)进行注浆前后单孔波速法和超声波法检测并对比结果。研究表明,注浆前后岩土体横波波速有所提高,密实度得到加固,注浆加固效果良好,单孔波速法和超声波法注浆质量检测技术方法可以在该项目推广应用。
In order to provide reliable geological survey data for the construction of Urumqi beltway(east route)and ensure the project to proceed smoothly,the detection results of single hole wave velocity method and ultrasonic wave velocity method before and after grouting the main rock strata in the goaf of steep inclined coal seam around the city of Urumqi were compared.The rock layers included pebble layer,strongly weathered bedrock,strong weathered coal seam and medium weathered base rock.The results show that the shear wave velocity of rock and soil before and after grouting is improved,the density is strengthened and the effect of grouting reinforcement is good.The single hole wave velocity method and ultrasonic method for grouting quality testing can be applied in the project.
In order to provide reliable geological survey data for the construction of Urumqi beltway(east route)and ensure the project to proceed smoothly,the detection results of single hole wave velocity method and ultrasonic wave velocity method before and after grouting the main rock strata in the goaf of steep inclined coal seam around the city of Urumqi were compared.The rock layers included pebble layer,strongly weathered bedrock,strong weathered coal seam and medium weathered base rock.The results show that the shear wave velocity of rock and soil before and after grouting is improved,the density is strengthened and the effect of grouting reinforcement is good.The single hole wave velocity method and ultrasonic method for grouting quality testing can be applied in the project.
引文
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[2]刘康和.面波探测新技术综述[J].电力勘测设计,1997(2):61-64.
[3]陈哲,章中良,吴魁彬.单孔与跨孔波速测试在工程中的应用[J].地质学刊,2010,34(2):192-195.
[4]朱菲菲,胡志东,杨晓艳.单孔法波速测试技术相关性因素分析及其在岩土工程勘察中的应用[J].土工基础,2012,26(6):117-121.
[5]彭忠伟.钻孔灌注桩桩底注浆技术研究[J].黑龙江工程学院学报,2011,25(2):39-43.
[6]栗克慧.钻孔灌注桩施工技术和质量控制[J].山西建筑,2011,37(6):51-52.
[7]耿子.钻孔灌注桩施工技术和质量控制[J].交通世界,2011(8):234-235.
[8]李丽丽.浅谈公路桥梁钻孔灌注桩施工技术和质量控制[J].科学技术创新,2011(4):228-229.
[9]王文才,王花彬.灌注桩复合后压浆施工工艺控制与检测[J].技术与市场,2011,18(9):35-35.
[10]黄秀铭.公路桥梁钻孔灌注桩施工技术探讨[J].技术与市场,2012,19(6):224-225.
[11]孙延龄.分析公路桥梁钻孔灌注桩施工技术处理探讨[J].工程技术:全文版,2016(12):141.
[12]隋德海,郭井宽.公路桥梁钻孔灌注桩施工技术要点探讨[J].中国新技术新产品,2011(2):63-64.
[13]彭永良,胡卸文,宋大各,等.大型复杂采空区注浆效果检测方法研究[J].程地质学报,2013,21(4):664-671.
[14]宋大各,胡卸文,彭永良,等.复杂采空区注浆效果检测综合物探方法研究[J].工程勘察,2013,41(5):85-89.
[15]郑育新.注浆工艺在采空区路基抗变形治理中的应用[J].筑路机械与施工机械化,2011,28(3):56-58.